Re: [GENERAL] effective_io_concurrency increasing

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От Melvin Davidson
Тема Re: [GENERAL] effective_io_concurrency increasing
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Msg-id CANu8FiwQVQmiCpSgu5J74s03t8bdoxF4GDm0Afr+yM6qHcroTQ@mail.gmail.com
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Ответ на [GENERAL] effective_io_concurrency increasing  (Patrick B <patrickbakerbr@gmail.com>)
Ответы Re: [GENERAL] effective_io_concurrency increasing
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On Sun, Jun 18, 2017 at 9:02 PM, Patrick B <patrickbakerbr@gmail.com> wrote:
Hi guys.

I just wanna understand the effective_io_concurrency value better.

My current Master database server has 16 vCPUS and I use effective_io_concurrency = 0.

What can be the benefits of increasing that number? Also, do you guys have any recommendations? 

I'm using PG 9.2 and the official doc does not say much about which value you should use.

If I put it to 1, does it mean I can have a query spread into 1 processor?

Thanks
P

18.4.6. Asynchronous Behavior

effective_io_concurrency (integer)
Melvin Davidson
I reserve the right to fantasize.  Whether or not you
wish to share my fantasy is entirely up to you.

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